Combustion fan installation structure of gas radiation oven range

ABSTRACT

A combustion fan installation structure of a gas radiation oven range is disclosed in which a combustion fan ( 200 ) is coupled at a space outside a space where a radiant burner ( 40 ) is positioned. Since the temperature of the sucked air for combustion is constantly maintained, an air with a sufficient air density can be supplied. Thus, it can have a stable combustion performance. In addition, an influence of the temperature change generated when the oven or the grill is operated can be excluded. Accordingly, a reliability of a combustion performance of the gas radiation oven range to be mainly used in kitchens or in hotels can be improved.

TECHNICAL FIELD

The present invention relates to a gas radiation oven range, and moreparticularly, to a combustion fan installation structure of a gasradiation oven range that is capable of improving a combustionperformance of a gas radiation oven range and maintaining a bettercombustion form by supplying air with enough and uniform oxygen densityin a gas radiation oven range having a combustion fan supplying air.

BACKGROUND ART

In general, a gas radiation oven range heats a radiator and cooks afoodstuff by using a radiant heat radiated from the heated radiator.

FIG. 1 illustrates an example of a gas radiation oven range inaccordance with a conventional art.

As shown in FIG. 1, the gas radiation oven range (C) is formed in ahexahedral shape, including a top burner unit (TB) in which a pluralityof burners are coupled to heat a container with a foodstuff therein isinstalled at the top layer of the burner, a grill unit (G) for makingbaked foodstuffs by using heat convection installed at a lower side ofthe top burner unit (TB), and an oven unit (O) for cooking a barbecuecuisine by using a vertical direct-fire power and heat convectioninstalled at a lower side of the grill unit (G).

The top burner unit (TB) includes: an outer case 10 formed to have acertain internal space with its upper side opened; a ceramic glass 20coupled at the upper side of the outer case 10 to cover it, on which afoodstuff is placed; a burner housing 30 coupled to be in contact with alower surface of the ceramic glass 20 and forming an exhaust passage (F)together with the lower surface of the ceramic glass 20; and a radiantburner 40 coupled at one side of the burner housing 30 and generating aradiant wave while combusting a mixed gas.

An air suction hole 11 is formed at a front side into which air isintroduced, and an exhaust port 12 is provided at a rear side of theburner.

The ceramic glass 20 is formed to have an area to cover the upper end ofthe outer case 10 and a certain thickness and made of a material thatcan transmit a radiant wave generated from the radiant burner 40.

A cooking area (A) is indicated at an upper side of the ceramic glass 20so that a foodstuff can be placed at the position where the radiant waveradiated from the radiant burner 40 is transmitted.

As shown in FIG. 2, the burner housing 30 includes: a lower plate unit31 formed having a certain width and length; side plate units 32 bentand extended in a vertical direction at both sides of the lower plateunit 31; a connection plate unit 33 extended and bent so as to connectthe both side plate units 32 to one side of the lower plate unit 31; acoupling face unit 34 extended and bent in a horizontal direction fromthe end of the both side plate unit 32 and the connection plate unit 33and having a certain area; and a mounting hole 35 positioned at the sideof the air suction hole 11 of the outer case 10 and penetratingly formedso that the radiant burner 40 is mounted at one side of the lower plateunit 31

The connection plate unit 33 of the burner housing 30 is positioned at afront side of the outer case 10, and the opposite opened portion ispositioned at the rear side of the outer case 10.

As the coupling face unit 34 is coupled being in contact with the lowersurface of the ceramic glass 20, the exhaustion passage (F) forexhausting a combustion gas and the convection heat is formed togetherwith the lower plate unit 31, the both side plate units 32 and the lowersurface of the ceramic glass 20.

The radiant burner 40 is fixedly coupled so that a burner head 41forming a mixing chamber (M) is positioned at the mounting hole 35 ofthe burner housing 30.

A mixed gas pipe 44 is coupled at one side of the burner head 41, and aburner mat 42, a radiator for radiating a radiant wave, is fixedlycoupled at an upper side of the burner head 41 so as to cover the mixingchamber (M) as the gas mixed in the mixing chamber (M) is discharged,burned and heated.

An ignition and inflammation detecting unit 43 for igniting a mixed gasbelched through the burner mat 42 and detecting a combustion state ofthe mixed gas is coupled at the lower plate unit 31 of the burnerhousing 30 so as to be adjacent to the burner mat 42.

The combustion fan 46 and a fan housing with a fan motor 47 insertedtherein are coupled to communicate with the mixed gas pipe 44.

As shown in FIG. 3, the mixed gas pipe 44 is coupled protruded insidethe radiant burner 40.

The radiant burner may be constructed by having a plurality of assemblyof the burner housing 30 and the radiant burner 40 according to its useand size.

The operation of the gas radiation oven range will now be described.

First, a cooking container 50 with a foodstuff therein is placed on acooking area (A) of the ceramic glass 20, and then, the gas radiationoven range is operated.

Then, as the combustion fan 46 is rotated, an external air is suckedthrough the air suction hole 11 and introduced into the mixed gas pipe44 through the fan housing 45, and at the same time, a separatelysupplied gas is supplied to the mixed gas pipe 44 and mixed with theair. The mixed gas is discharged through the burner mat 42, and at thesame time, ignited and burned by an ignition flame generated by theignition and inflammation detecting unit 43.

At this time, as the mixed gas is belched through the burner mat 42 andat the same time burned, the burner mat 42 is heated and radiates aradiant wave. The radiant wave radiated from the burner mat 42 istransmitted through the ceramic glass 20 to heat the cooking container50, thereby cooking the foodstuff put therein.

The combustion gas and convection heat generated as the mixed gas isburned flow at a certain flow rate along the exhaustion passage (F)formed by the ceramic glass 20 and the burner housing 30 and areexhausted outside the gas radiation oven range through the exhaust port12 formed at the rear side of the outer case 10.

The conventional gas radiation oven range uses two burners, showingstructures of each component.

In general, if a mixture ratio between a fuel and an air is notconstant, a combustion state is unstable in a mixed combustion.

That is, in the gas radiation oven range which cooks a foodstuff byusing the radiant heat generated when a gas is burned around the burnermat 42, the combustion state works as a critical parameter in generatingthe radiant heat.

However, since the combustion fan 46 is adjacent to the side of theradiant burner 40, the air supplied to the combustion fan 46 typicallyhas a higher temperature than that of the general room air.

In this respect, if the temperature of the air goes up, its oxygendensity contained in the air is lowered down, failing to supply an airsufficient for combustion.

Then, combustion is incompletely made, and accordingly, when the mixedgas is burned in the burner mat 42, the burner mat 42 is notsufficiently heated, resulting in that a radiant wave of a shortwavelength suitable for cooking can not be generated.

Resultantly, since the combustion is not completely made in the gasradiation oven range, the cooking performance of the burner isconsiderably degraded.

In other words, the increase in the temperature of air supplied to theburner lowers down the air density to fail to supply the sufficient andaccurate amount of air required for combustion. Thus, the rate of oxygenof the air is lowered down to go beyond the a normal operationcondition, causing a problem of attaining a reliability in a combustioncontrolling.

FIG. 4 is a graph showing a change in an air density according to atemperature change.

As shown in FIG. 4, the air density is rapidly dropped down at thetemperature of 20° C.˜100° C.

In addition, for a preferable combustion state, the gas supplied to theburner head 41 of the radiant burner 40 and a direction in which the airis injected are also critical factors.

Moreover, in the conventional the gas radiation oven range, the mixedgas pipe 44 is coupled at the side of the burner head 41 and its end isformed in a general tube shape, so that a mixed gas flowing inside theburner head 41 is inclined to one side and injected and thus thebehavior of the mixed gas is not uniform.

DISCLOSURE OF THE INVENTION

Therefore, it is an object of the present invention to provide acombustion fan installation structure of a gas radiation oven range thatis capable of improving a combustion performance of a gas radiation ovenrange and maintaining a better combustion form by supplying air withenough and uniform oxygen density in a gas radiation oven range having acombustion fan supplying air.

To achieve these objects, there is provided a combustion faninstallation structure of a gas radiation oven range including: an outercase formed with its upper side opened and having an internal spacewhich is sectioned to at least more than one space therein; a ceramicglass coupled to cover the outer case at the upper end, on which afoodstuff is placed to be cooked; a burner housing coupled to be incontact with a lower surface of the ceramic glass and forming anexhaustion passage together with the lower surface of the ceramic glass;a radiant burner coupled at one side of the burner housing andgenerating a radiant wave while burning a gas; a mixed gas pipe of whichone end is coupled at one side of the radiant burner and the other enddownwardly penetrating each section wall formed inside the outer case; agas supply pipe coupled at one side of the mixed gas pipe; and acombustion fan positioned at some distance from the sectioned space ofthe uppermost part where the burner housing is coupled thereto andcoupled to the other end of the mixed as pipe.

To achieve the above object, there is also provided a combustion faninstallation structure of a gas radiation oven range including: a topburner unit with its upper side opened and having a burner assemblycoupled therein; an outer case including a grill unit coupled at a lowerside of a top case and performing a baking or roasting and an oven unitcoupled at a lower side of the grill unit and performing a barbecuecooking; a ceramic glass coupled at the upper end of the top burnerunit, covering it, on which a foodstuff is placed for cooking; a burnerhousing coupled to be in contact with the lower surface of the ceramicglass and forming an exhaust passage together with the lower surface ofthe ceramic glass; a radiant burner coupled at one side of the burnerhousing and generating a radiant wave while burning a gas; a mixing pipeof which one end is coupled at one side of the radiant burner and theother end downwardly penetrates the grill unit and an oven unit formingthe outer case; a gas supply pipe coupled at one side of the mixingpipe; and a combustion fan positioned at some distance from the topburner unit where the burner housing is coupled and coupled to the otherend of the mixing pipe.

To achieve the above object, there is also provided a combustion faninstallation structure of a gas radiation oven range including: a topburner unit with its upper side opened and having a burner assemblycoupled therein; an outer case including a grill unit coupled at a lowerside of a top case and performing a baking or roasting and an oven unitcoupled at a lower side of the grill unit and performing a barbecuecooking; a ceramic glass coupled at the upper end of the top burnerunit, covering it, on which a foodstuff is placed for cooking; a burnerhousing coupled to be in contact with the lower surface of the ceramicglass and forming an exhaust passage together with the lower surface ofthe ceramic glass; a radiant burner coupled at one side of the burnerhousing and generating a radiant wave while burning a gas; and acombustion fan coupled at one side of the radiant burner, wherein thecombustion fan is coupled at the oven unit at some distance from the topburner unit where the burner housing is positioned.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing an example of a gas radiation ovenrange in accordance with a conventional art;

FIG. 2 is a sectional view showing a combination state of a combustionfan of the gas radiation oven range in accordance with the conventionalart;

FIG. 3 is a plan view showing a gas mixing pipe of the gas radiationoven range in accordance with the conventional art;

FIG. 4 is a graph showing a distribution of an air density according toa temperature state;

FIG. 5 is a perspective view showing a combustion fan installationstructure of a gas radiation oven range in accordance with the presentinvention;

FIG. 6 is a vertical sectional view showing the combustion faninstallation structure of a gas radiation oven range in accordance withthe present invention; and

FIG. 7 is a plan view showing a mixing gas pipe of the combustion faninstallation structure of a gas radiation oven range in accordance withthe present invention; and

MODES FOR CARRYING OUT THE PREFERRED EMBODIMENTS

A combustion fan installation structure of a gas radiation oven range ofthe present invention will now be described in detail with reference toaccompanying drawings.

The same reference numerals were given to the same elements as in theconventional art.

As shown in FIGS. 5 and 6, in the combustion fan installation structureof a gas radiation oven range, a gas radiation oven range (C) is formedin a hexahedral shape, including a top burner unit (TB) in which aplurality of burners are coupled to heat a container with a foodstufftherein is installed at the top layer of the burner, a grill unit (G)for making baked foodstuffs by using heat convection installed at alower side of the top burner unit (TB), and an oven unit (O) for cookinga barbecue cuisine by using a vertical fire power and heat convectioninstalled at a lower side of the grill unit (G).

The top burner unit (TB) includes: an outer case 10 formed to have acertain internal space with its upper side opened; a ceramic glass 20coupled at the upper side of the outer case 10 to cover it, on which afoodstuff is placed; a burner housing 30 coupled to be in contact with alower surface of the ceramic glass 20 and forming an exhaust passage (F)together with the lower surface of the ceramic glass 20; and a radiantburner 40 coupled at one side of the burner housing 30 and generating aradiant wave while combusting a mixed gas.

The ceramic glass 20 is formed to have an area to cover the upper end ofthe outer case 10 and a certain thickness and made of a material thatcan transmit a radiant wave generated from the radiant burner 40.

A cooking area (A) is indicated at an upper side of the ceramic glass 20so that a foodstuff can be placed at the position where the radiant waveradiated from the radiant burner 40 is transmitted.

As shown in FIGS. 5 and 6, the burner housing 30 includes: a lower plateunit 31 formed having a certain width and length; a side plate unit 32bent and extended in a vertical direction at both sides of the lowerplate unit 31; a connection plate unit 33 extended and bent so as toconnect the both side plate unit 32 to one side of the lower plate unit31; a coupling face unit 34 extended and bent in a horizontal directionfrom the end of the both side plate unit 32 and the connection plateunit 33 and having a certain area; and a mounting hole 35 penetratinglyformed at one side of the lower plate unit 31 so as to be positioned atthe side of the air suction hole 11 of the outer case 10 so that theradiant burner 40 can be mounted therein.

The connection plate unit 33 of the burner housing 30 is positioned at afront side of the outer case 10, and the opposite opened portion ispositioned at the rear side of the outer case 10.

As the coupling face unit 34 is coupled being in contact with the lowersurface of the ceramic glass 20, the exhaustion passage (F) forexhausting a combustion gas and the convection heat is formed togetherwith the lower plate unit 31, the both side plate unit 32 and the lowersurface of the ceramic glass 20.

The radiant burner 40 is fixedly coupled so that a burner head 41forming a mixing chamber (M) is positioned at the mounting hole 35 ofthe burner housing 30.

A mixed gas pipe 144 is coupled at one side of the burner head 41, and aburner mat 42, a radiator for radiating a radiant wave, is fixedlycoupled at an upper side of the burner head 41 so as to cover the mixingchamber (M) as the gas mixed in the mixing chamber (M) is belched,burned and heated.

An ignition and inflammation detecting unit 43 for igniting a mixed gasbelched through the burner mat 42 and detecting a combustion state ofthe mixed gas is coupled at the lower plate unit 31 of the burnerhousing 30 so as to be adjacent to the burner mat 42.

As shown in FIG. 6, the mixed gas pipe 144 includes a coupling pipe 144a penetratingly coupled at one side of the radiant burner 41, of whichone end is protruded inside the radiant burner 41; and a flexible airconvey pipe 144 b coupled at the end of the coupling pipe 144 a andpenetrating the grill unit (G) and the oven unit (O) formed at a lowerportion of the outer case 10.

The end of the air convey pipe 144 b is coupled at a combustion fan 200formed as a motor and a fan are integrally coupled, and the combustionfan 200 is coupled at one side of the lowermost portion of the outercase 10.

A gas supply pipe 145 is coupled at one side of the mixed gas pipe 144with certain distances (a) and (b) sufficient to form an uniform mixedgas.

As shown in FIG. 7, a plurality of injection holes 146 are formed at oneside of the coupling pipe 144 a of the mixed gas pipe 144 coupledprotruded inside the radiant burner 40, in order to uniformly spray themixed gas in every direction.

A plurality of suction holes 61 are formed at the bottom 60 of the outercase 10 to suck a low temperature air distributed at the lower portionof the burner.

The flexible air convey pipe 144 b is made of insulated material inorder to block a heat transmission from the ambient.

The mixed gas pipe 144 and the combustion fan 200 may be installedinside a cooling convey duct 400 formed to cool the exhaust gasdischarged form the rear side of the outer case 10.

A separating plate 300 may be additionally formed to section a space atthe lower side from the middle portion of the oven unit (O) at the sideof the oven unit (O) positioned at the lowermost portion of the outercase 10, in order to maintain a low temperature air and pruniformttransmission of heat generated from the grill unit (G) and the oven unit(O) of the burner.

A reference numeral 10 a is a cover to cover the side of the outer case10.

The radiant burner may be constructed by including a plurality ofassemblies formed by coupling the burner housing 30 and the radiantburner 40 according to its use and size.

The operation of the gas radiation oven range constructed as describedabove will now be explained.

First, a cooking container 50 with a foodstuff put therein is placed ata cooking area (A) of the ceramic glass 20 and the gas radiation ovenrange is operated. Then, as the combustion fan 200 is rotated, the lowtemperature air formed at the bottom of the space where the burner isplaced is sucked through the suction holes 61 and introduced into themixed gas pipe 144 through a fan housing (not shown) integrally coupledat the combustion fan 200. And, at the same time, a gas is supplied fromthe mixed gas pipe 144 from the gas supply pipe 145 coupled at one sideof the mixed gas pipe 144 with the distances (a) and (b) from theradiant burner 40 and mixed with the air. The mixed air is dischargedthrough the burner mat 42, and at the same time, ignited and burned bythe ignition spark generated by the ignition and inflammation detectingunit 43.

At this time, as the mixed gas is discharged through the burner mat 42and simultaneously burned, the burner mat 42 is heated so that a radiantwave is radiated from the burner mat 42. The radiant wave radiated fromthe burner mat 42 is transmitted through the ceramic glass 20 to heatthe cooking container 50, thereby cooking the foodstuff put therein.

The combustion gas generated as the mixed gas is burnt and convectionheat flow with a certain flow rate along the exhaust passage (F) formedby the ceramic glass 20 and the burner housing 30 and dischargedoutwardly of the gas radiation oven range through the exhaust port 12formed at the rear side of the outer case 10.

INDUSTRIAL APPLICABILITY

As so far described, according to the combustion fan installationstructure of a gas radiation oven range, since the temperature of thesucked air for combustion is constantly maintained, an air with asufficient air density can be supplied. Thus, it can have a stablecombustion performance.

In addition, a problem that an oxygen density in the air according to aninfluence of a temperature change of an inflow air generated when theoven or the grill is operated can be solved. Accordingly, a reliabilityof a combustion performance of the gas radiation oven range to be mainlyused in kitchens or in hotels can be improved.

1. A combustion fan installation structure of a gas radiation oven rangecomprising: a top burner unit having an opened upper side and having aburner assembly coupled therein; an outer case including a grill unitcoupled at a lower side of a top case and an oven unit coupled at alower side of the grill unit; a ceramic glass coupled at the upper sideof the top burner unit; a burner housing located at a top portion of theouter case and coupled to be in contact with the lower surface of theceramic glass and forming an exhaust passage together with the lowersurface of the ceramic glass; a cooling convey duct formed at a rearwall of the outer case to allow gases to flow therethrough, the coolingconvey duct extending from a bottom end of the outer case up to andextending above a top surface of the ceramic glass, and the coolingconvey duct having gas flow connectivity with the oven unit, with thegrill unit, and with the exhaust passage below the ceramic glass; aradiant burner coupled at one side of the burner housing and generatingradiant heat; a mixing pipe of which one end is coupled at one side ofthe radiant burner and the other end extends downwardly to be below thegrill unit; a gas supply pipe coupled at one side of the mixing pipe;and a combustion fan located at a bottom portion of the outer case at aside wall thereof and coupled to the other end of the mixing pipe,wherein a separation plate is additionally installed at the space formedat one side of the oven unit constituting the outer case to section thespace and the combustion fan, and wherein the entire combustion fan islocated below the one end of the mixing pipe, and the one end of themixing pipe is higher than the other end of the mixing pipe, and whereinthe combustion fan operates to induce air to flow into an intake ventformed at a bottom surface of the outer case, pass through the mixingpipe, in which air and gas are combined to form a mixed gas, and themixed gas being provided to the radiant burner of the burner housing inwhich combustion of the mixed gas occurs, and whereby exhaust gases as aresult of the combustion pass through the exhaust passage, and exit viathe cooling convey duct.
 2. The structure of claim 1, wherein the mixedgas pipe comprises: a coupling pipe penetratingly coupled at one side ofthe radiant burner, of which one end is protruded into the radiantburner; and an air convey pipe coupled at the other end of the couplingpipe and penetratingly extended to a space at a bottom portion of theouter case.
 3. The structure of claim 2, wherein the air convey pipe ismade of a flexible material.
 4. The structure of claim 2, wherein thecoupling pipe coupled at the radiant burner includes a plurality ofinjection holes at a certain portion of the end protruded into theradiant burner.
 5. The structure of claim 2, wherein the coupling pipecoupled at the radiant burner is formed downwardly by being bent morethan once from a certain portion outside the radiant burner.
 6. Anapparatus comprising: a body having a front wall, a rear wall thatopposes the front wall, a first side wall, and a second side wall thatopposes the front side wall; an oven unit at a bottom portion of thebody; a grill unit at a middle portion of the body above the oven unit;a ceramic cooking surface at a top portion of the body above the grillunit; a cooling convey duct formed at the rear wall of the body to allowgases to flow therethrough, the cooling convey duct extending from abottom end of the body up to and extending above the ceramic cookingsurface, and the cooling convey duct having gas flow connectivity withthe oven unit, with the grill unit, and with an exhaust passage belowthe ceramic cooking surface; a radiant burner assembly below the ceramiccooking surface and under the exhaust passage; a mixed gas pipe with abent configuration having a first section extending horizontally intothe radiant burner assembly and a second section perpendicular to thefirst section and extending towards the bottom end of the body; a gassupply means connected to the second section of the mixed gas pipe tosupply gas into the mixed gas pipe to allow forming of a mixed gas; anexhaust vent, located at a top end of the cooling convey duct and facingin a direction opposite from the ceramic cooking surface, to allowexhaust gases to travel through the cooling convey duct and exhaust fromthe body away from the ceramic cooking surface; an intake vent locatedat a bottom surface of the body at a lower end of the first side wall toreceive air into the body; and a fan mechanism located by the first sidewall and above the intake vent, the fan providing air to the radiantburner assembly via a flexible connector attached to the second sectionof the mixed gas pipe, wherein the fan mechanism operates to induce airto flow into the intake vent, pass through the flexible connector intothe mixed gas pipe, in which air and gas are combined to form the mixedgas, and the mixed gas being provided into the radiant burner assemblyin which combustion of the mixed gas occurs, and whereby exhaust gasesas a result of the combustion pass through the exhaust passage, into thecooling convey duct, and out the exhaust vent.
 7. The apparatus of claim6, wherein for the mixed gas pipe, the first section has a first lengthand the second section has a second length, whereby the first and secondlengths provide a sufficient distance along the mixed gas pipe to allowthe mixed gas to be formed in a uniform manner.
 8. The apparatus ofclaim 7, further comprising: a separation plate formed at the first sidewall to create a region around the fan mechanism to maintain atemperature near the fan mechanism by minimizing heat from beingtransferred from the oven unit, the grill unit, and the radiant burnerassembly.
 9. The apparatus of claim 8, wherein the separation plate hasa curvature to match a shape of the fan mechanism.